PbOx/Au-Pd core-shell structures for Schottky junction solar cells

Dipal B. Patel; Khushbu R. Chauhan; Indrajit Mukhopadhyay

doi:10.1117/12.2077936

13 March 2015 PbO_x/Au-Pd core-shell structures for Schottky junction solar cells

Dipal B. Patel, Khushbu R. Chauhan, Indrajit Mukhopadhyay

Proceedings Volume 9364, Oxide-based Materials and Devices VI; 93641V (2015) https://doi.org/10.1117/12.2077936
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Since the beginning of the era of third generation solar cells, researchers are motivated to explore various semiconductor-metal configurations for the efficient solar energy conversion. We first time report the use of non-stoichiometric PbO_x electrodes in the Schottky junction solar cell. This metal oxide makes an efficient Schottky junction with the high work function alloy of Au-Pd. It was found that thin films of anodized lead metal prepared via potential pulse technique result in the nanowall assemblies. When a few nanometer layer of Au-Pd was sputtered on these assemblies, we obtained a core-shell Schottky junction solar cells of PbO_x/Au-Pd. With these newly developed structures, we obtained highest J_sc of 2.04 mA/cm² with V_oc of 707 mV achieving an overall efficiency of 0.384%. The performance of solar cell was assessed by D.C. and A.C. techniques. An equivalent circuit model is also presented for understanding the charge transfer mechanisms in such solar cells.

Citation Download Citation

Dipal B. Patel, Khushbu R. Chauhan, and Indrajit Mukhopadhyay "PbO_x/Au-Pd core-shell structures for Schottky junction solar cells", Proc. SPIE 9364, Oxide-based Materials and Devices VI, 93641V (13 March 2015); https://doi.org/10.1117/12.2077936

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KEYWORDS

Solar cells

Electrodes

Lead

Resistance

Metals

Oxides

Capacitance

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